Add 1/28 and 20/80
1/28 + 20/80 is 2/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
1/28 = 1 × 20/28 × 20 = 20/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
20/80 = 20 × 7/80 × 7 = 140/560 - Add the two like fractions:
20/560 + 140/560 = 20 + 140/560 = 160/560 - 160/560 simplified gives 2/7
- So, 1/28 + 20/80 = 2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/28+20/80 1/28+40/80 1/56+20/80 3/28+20/80 1/28+60/80 1/84+20/80 5/28+20/80 7/28+20/80